Alien Invasion Radio Alert

“With recent detection of Earth-like planets in the habitable zones of other stars, we have natural targets for such transmission projects.

Some would argue that we should avoid powerful transmissions at all costs for fear of an alien invasion.” (Independent)

Douglas Vokoch, of the Seti Institute in California outlines the concerns of rival cosmologists who are increasingly alarmed that beaming radio messages into space could attract apocalyptically minded evil extra-terrestials.